Go ahead and list the components and we may be able to suggest what you might expect to receive if you want to go to the minor chore of listing them or putting them up for auction... or let us know (generally/city) where you are and perhaps someone like Grannyring- who I know to be trustworthy- (as would anyone with lots of posts & great feedback) to be helpful in at least pointing you to an honest dealer. You can also pay a bit and utilize the "Audio Bluebook" function on this site. In general, you'll probably get about 50% of new value. You can lookup new prices by just Googling the equipment name/reviews. But consider this.....
As Tom6897 suggested, consider passing it along to his favorite relative/nephew who would appreciate it and always remember your husband/and you. Here's the advice I got from a quality gun dealer when I considered selling my (alzheimer's) father's very nice heirloom shotgun:
He said, "One day your father will be gone, the shotgun will be gone, and the money will be gone." What a good dealer to convince me to keep it.
As Tom6897 suggested, consider passing it along to his favorite relative/nephew who would appreciate it and always remember your husband/and you. Here's the advice I got from a quality gun dealer when I considered selling my (alzheimer's) father's very nice heirloom shotgun:
He said, "One day your father will be gone, the shotgun will be gone, and the money will be gone." What a good dealer to convince me to keep it.